Kohler XT Series XT775 173cc MotorOn XT Series engines for walk behind mowers, professional grade features come standard. You get smooth, reliable starts and lawns that look great with every cut. Features Just pull and go with Smart Choke technology, there's no choking, no priming, no flooded engine Enjoy effortless, no prime starts thanks to our Smart Choke and Easy Pull technology Easy pours and less spilling with Accu Fill fuel tank's 45% larger angled fuel neck Consistent Cut